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Table 3 Factors associated with household income

From: The effect of high medical expenses on household income in South Korea: a longitudinal study using propensity score matching

   

Unit: USD

Variables

Estimate§

Std. Error

p-value

Householder level

 

Sex

   

  Man

0

  

  Woman

−553

86.2

0.4914

Age

   

  Under 39

0

  

  40 ~ 64

329

101.2

0.7285

  Over 65

−3,887

101.2

0.0037

Education level

   

  Below elementary school

0

  

  Middle school

2,081

93.7

0.0175

  High school

5,202

85.4

<.0001

  above university

11,689

101.7

<.0001

Marriage status

   

  Married

0

  

  Unmarried

−7,928

153

<.0001

  Divorce, Separated

−1,605

77.7

0.0271

Household level

 

Employment of household

   

  None

0

  

  >1 person

4,908

43.3

<.0001

Senior of household

   

  None

0

  

  >1 person

−2,061

99.2

0.0261

Member with chronic disease

   

  None

0

  

  1 person

−225

32.1

0.5691

  ≥2 people

−1,107

56.8

0.0351

Year (reference: 2007)

   

  2008

1,408

65.6

0.0216

  2009

1,723

101.7

0.0698

  2010

197

76.8

0.7836

  2011

103

80.4

0.8914

Case (reference: non-occurrence household)

   

  Occurrence household

−1,784

95.7

0.0458

Interaction term (year x Case)

   

  2008

−1,737

75.7

0.0142

  2009

−2,357

117.3

0.0317

  2010

−1,426

86.4

0.0840

  2011

−663

92.4

0.4422

  1. § Adjusted odds ratio from multiple regression analysis with all of the variables in Table 1